Simplify building the plugin manager.

docs/source/changes.md

@@ -5,6 +5,10 @@ chronological order. Releases follow [semantic versioning](https://semver.org/)
 releases are available on [PyPI](https://pypi.org/project/pytask) and
 [Anaconda.org](https://anaconda.org/conda-forge/pytask).
 
+## 0.4.2 - 2023-xx-xx
+
+- {pull}`449` simplifies the code building the plugin manager.
+
 ## 0.4.1 - 2023-10-11
 
 - {pull}`443` ensures that `PythonNode.name` is always unique by only handling it

src/_pytask/build.py

@@ -40,7 +40,7 @@ def pytask_extend_command_line_interface(cli: click.Group) -> None:
     cli.add_command(build_command)
 
 
-def build(  # noqa: C901, PLR0912, PLR0913, PLR0915
+def build(  # noqa: C901, PLR0912, PLR0913
     *,
     capture: Literal["fd", "no", "sys", "tee-sys"] | CaptureMethod = CaptureMethod.NO,
     check_casing_of_paths: bool = True,
@@ -154,10 +154,6 @@ def build(  # noqa: C901, PLR0912, PLR0913, PLR0915
     """
     try:
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
 
         raw_config = {
             "capture": capture,

src/_pytask/clean.py

@@ -95,17 +95,13 @@ def pytask_parse_config(config: dict[str, Any]) -> None:
     help="Do not print the names of the removed paths.",
     default=False,
 )
-def clean(**raw_config: Any) -> NoReturn:  # noqa: C901, PLR0912, PLR0915
+def clean(**raw_config: Any) -> NoReturn:  # noqa: C901, PLR0912
     """Clean the provided paths by removing files unknown to pytask."""
     raw_config["command"] = "clean"
 
     try:
         # Duplication of the same mechanism in :func:`pytask.build`.
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
 
         config = pm.hook.pytask_configure(pm=pm, raw_config=raw_config)
         session = Session.from_config(config)

src/_pytask/cli.py

@@ -1,7 +1,6 @@
 """Implements the command line interface."""
 from __future__ import annotations
 
-import sys
 from typing import Any
 from typing import TYPE_CHECKING
 
@@ -29,20 +28,12 @@
 
 def _extend_command_line_interface(cli: click.Group) -> click.Group:
     """Add parameters from plugins to the commandline interface."""
-    pm = _prepare_plugin_manager()
+    pm = get_plugin_manager()
     pm.hook.pytask_extend_command_line_interface(cli=cli)
     _sort_options_for_each_command_alphabetically(cli)
     return cli
 
 
-def _prepare_plugin_manager() -> pluggy.PluginManager:
-    """Prepare the plugin manager."""
-    pm = get_plugin_manager()
-    pm.register(sys.modules[__name__])
-    pm.hook.pytask_add_hooks(pm=pm)
-    return pm
-
-
 def _sort_options_for_each_command_alphabetically(cli: click.Group) -> None:
     """Sort command line options and arguments for each command alphabetically."""
     for command in cli.commands:

src/_pytask/collect_command.py

@@ -57,13 +57,7 @@ def collect(**raw_config: Any | None) -> NoReturn:
     raw_config["command"] = "collect"
 
     try:
-        # Duplication of the same mechanism in :func:`pytask.build`.
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
-
         config = pm.hook.pytask_configure(pm=pm, raw_config=raw_config)
         session = Session.from_config(config)
 

src/_pytask/graph.py

@@ -86,13 +86,7 @@ def dag(**raw_config: Any) -> NoReturn:
     """Create a visualization of the project's directed acyclic graph."""
     try:
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
-
         config = pm.hook.pytask_configure(pm=pm, raw_config=raw_config)
-
         session = Session.from_config(config)
 
     except (ConfigurationError, Exception):
@@ -153,10 +147,6 @@ def build_dag(raw_config: dict[str, Any]) -> nx.DiGraph:
     """
     try:
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
 
         # If someone called the programmatic interface, we need to do some parsing.
         if "command" not in raw_config:

src/_pytask/mark/__init__.py

@@ -50,13 +50,7 @@ def markers(**raw_config: Any) -> NoReturn:
     raw_config["command"] = "markers"
 
     try:
-        # Duplication of the same mechanism in :func:`pytask.build`.
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
-
         config = pm.hook.pytask_configure(pm=pm, raw_config=raw_config)
         session = Session.from_config(config)
 

src/_pytask/pluginmanager.py

@@ -11,4 +11,9 @@ def get_plugin_manager() -> pluggy.PluginManager:
     pm.add_hookspecs(hookspecs)
     pm.load_setuptools_entrypoints("pytask")
 
+    from _pytask import cli
+
+    pm.register(cli)
+    pm.hook.pytask_add_hooks(pm=pm)
+
     return pm

src/_pytask/profile.py

@@ -114,13 +114,7 @@ def profile(**raw_config: Any) -> NoReturn:
     raw_config["command"] = "profile"
 
     try:
-        # Duplication of the same mechanism in :func:`pytask.build`.
         pm = get_plugin_manager()
-        from _pytask import cli
-
-        pm.register(cli)
-        pm.hook.pytask_add_hooks(pm=pm)
-
         config = pm.hook.pytask_configure(pm=pm, raw_config=raw_config)
         session = Session.from_config(config)